Question 244803
x+y=1287
If I am reading your problem correctly
x=9.5+ 2.5y
9.5+ 2.5y+y=1287
9.5+3.5y=1287

3.5y=1287-9.5
3.5y=1277.5
multiply by 10
35y=12775
y=365
x=922